Two saw waves are offset one by half cycle and subtracted from each other. This results in PWM-style sounds not possible with conventional means, via phase shift and frequency ratio controls. These allow you to create extreme PWM and detuned sounds.

You are very “vocal” on Synthtopia” – lots of posts and no substance I’m afraid.
Plugin in question is excellent, but of course you need Ableton Suite to run it.
If you can’t afford it or don’t have it, don’t post negative comments please.

Well, Ableton is sponsoring it by the fact that they have created a framework that allows Max devices to run inside Live. A lot of people prefer to develop devices in MAX over VSTs because the framework is very solid, easy to use and there are a lot of building blocks to speed up development. The choice to use MAX for Live over MAX MSP could be financial or personal preference.